Photosynthesis Research

, Volume 31, Issue 3, pp 195–212

Anatomy of non-uniform leaf photosynthesis

Authors

  • Ichiro Terashima
    • Department of Botany, Faculty of ScienceUniversity of Tokyo
Minireview

DOI: 10.1007/BF00035537

Cite this article as:
Terashima, I. Photosynth Res (1992) 31: 195. doi:10.1007/BF00035537

Abstract

Since 1986, non-uniform photosynthesis over the leaf area that may be attributed to patchy stomatal closure, has been an important issue in stress physiology of photosynthesis. In this review, I first outline the gaseous environment within the intercellular spaces, because this is the most fundamental background of this problem. Then, recent studies approaching non-uniform photosynthesis are reviwed. After examining techniques for the detection of non-uniform photosynthesis or non-uniform stomatal aperture, results of the relevant studies are discussed for respective stress factors, seeking causes and consequences of non-uniform photosynthesis. From these, mechanisms responsible for, and consequences of non-uniform photosynthesis, are considered. The problems which should be challenged are also pointed out.

Key words

bundle sheath extension gas diffusion gas exchange heterobaric and homobaric leaves stomata stress

Abbreviations

A

rate of photosynthetic CO2 fixation (assimilation rate)

ABA

abscisic acid

g

conductance for CO2 or H2O

pa

partial pressure of CO2 in the ambient air

pi

partial pressure of CO2 in the intercellular space

‘pi

pi estimated by the conventional gas exchange techniques

qN

non-photochemical quenching

qp

photochemical quenching

Copyright information

© Kluwer Academic Publishers 1992